Abstract
We propose a taxonomy of preemptive (suspensive and abortive) operators capturing the intuition of such operators that exist in the various synchronous languages. Some of the main contributions of the paper are: a precise notion of preemption is established at a structural level; we show that the class of suspensive operators is strictly more expressive than abortive operators, and we show that suspension is primitive while abortion is not
The proof techniques relies on a syntactic approach, based on SOS-specification formats, to categorize the different preemption features; also an equivalence criterion between operators specifications is proposed to provide us with expressive power measurement
Work supported by IFCPAR (Indo-French Center for the Promotion of Advanced Research), New Delhi
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Pinchinat, S., Rutten, É., Shyamasundar, R.K. (1998). Taxonomy and Expressiveness of Preemption: A Syntactic Approach. In: Hsiang, J., Ohori, A. (eds) Advances in Computing Science ASIAN 98. ASIAN 1998. Lecture Notes in Computer Science, vol 1538. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-49366-2_11
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DOI: https://doi.org/10.1007/3-540-49366-2_11
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